MPXH6115AC6T1 - 15-115 kPa Absolute Pressure Sensor | STMicroelectronics
N.º de pieza: MPXH6115AC6T1 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $9.1 | $9,10 |
| 10 | $8.2 | $82,00 |
| 100 | $7.15 | $715,00 |
| 500 | $6.4 | $3.200,00 |
| 1.000 | $5.85 | $5.850,00 |
MPXH6115AC6T1 Descripción general
An absolute pressure sensor measures pressure referenced to a sealed vacuum rather than ambient atmosphere, which is critical for applications requiring altitude determination, sealed-cavity monitoring, or barometric reference. The MPXxx6115A family occupies a defined tier in the broader sensor hierarchy: pressure sensor -> MEMS sensor -> signal-conditioned sensor -> environmental sensor -> semiconductor. On-chip temperature compensation is implemented from -40 C to +125 C, eliminating the need for external lookup tables or calibration in most embedded designs.
Key features of the MPXH6115AC6T1 include 1.5% maximum accuracy across the compensated range, a durable thermoplastic (PPS) surface-mount package rated for high-temperature reflow, and a typical supply current under 10 mA from a single 5 V rail. The integrated op-amp and resistor network provide ratiometric output proportional to VCC, simplifying ADC interfacing without additional signal conditioning.
Architecturally, the device combines a piezoresistive MEMS strain-gauge bridge with bipolar signal-conditioning silicon on the same die. This single-chip integration improves noise immunity and long-term drift compared with discrete bridge-plus-amplifier solutions. The ratiometric output simplifies MCU sampling because the ADC reference can share the sensor supply.
Typical applications include engine manifold absolute pressure (MAP) sensing, barometric altimeters, weather stations, HVAC duct pressure monitoring, medical respiratory equipment, and tire pressure monitoring modules. The wide compensated temperature range and surface-mount form factor make it well suited for automotive under-hood and industrial environments.
A primary design consideration is ratiometric ADC sampling: the sensor output scales linearly with VCC, so the microcontroller ADC reference must be derived from the same 5 V rail to preserve absolute accuracy. Decoupling VCC with a 100 nF ceramic capacitor placed within 5 mm of the supply pin minimizes switching noise on the analog output.
This page consolidates distributor stock and pricing data, drop-in alternatives in the same SSOP-8 footprint, and engineering design notes compiled from the manufacturer datasheet and verified cross-reference searches.
Alternativas directas para MPXH6115AC6T1 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MPXH6115AC6T1 (mismo factor de forma y huella) — difiere en Package, Output Type, Accuracy, Output Voltage Range, Operating Pressure Range.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MPXH6115AC6U
✅ Sustitución directa✓ En stock
$5.75 / unidad
Ver hoja de datos →MPXHZ6115AC6T1
✅ Sustitución directa✓ En stock
$6.65 / unidad
Ver hoja de datos →MPXHZ6115AC6U
✅ Sustitución directa✓ En stock
$7.25 / unidad
Ver hoja de datos →MP3H6115A6U
✅ Sustitución directa✓ En stock
$4.85 / unidad
Ver hoja de datos →XGZP6858A
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MPXH6115AC6T1 Valores máximos y características eléctricas
| Pressure Type | Absolute |
| Operating Pressure Range | 15 kPa to 115 kPa (2.18 PSI to 16.68 PSI) |
| Output Voltage Span | 0.2 V to 4.7 V (at VCC = 5.0 V) |
| Supply Voltage (VCC) | 4.75 V to 5.25 V |
| Accuracy | 1.5% (over compensated temperature range) |
| Temperature Compensation Range | -40 C to +125 C |
| Tipo de salida | Analog, ratiometric |
| Encapsulado / Carcasa | 8-SSOP (0.335", 8.50 mm width), Top Port |
| Pressure Port | Male 0.13" (3.3 mm) tube, top-side |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40 C to +125 C |
| Media Compatibility | Dry gases (non-corrosive) |
| Estado RoHS | Compliant |
Configuración de pines de MPXH6115AC6T1
| Pin 1 | VCC — Supply voltage (5 V typical) |
| Pin 2 | GND — Ground |
| Pin 3 | VOUT — Analog ratiometric output (0.2 V to 4.7 V) |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | NC — Not connected (per datasheet) |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | NC — Not connected (per datasheet) |
| Pin 8 | NC — Not connected (per datasheet) |
Aplicaciones típicas
MPXH6115AC6T1 es adecuado para 6 aplicacións: Engine Manifold Absolute Pressure (MAP) Sensing, Barometric Altimeter / Weather Station, Medical Respiratory / CPAP Pressure Monitoring, HVAC Duct Pressure Monitoring, Tire Pressure Monitoring Module (TPMS), Sealed-Cavity Leak Detection.
Engine Manifold Absolute Pressure (MAP) Sensing
The MPXH6115AC6T1 is purpose-built for engine MAP sensing where the absolute pressure inside the intake manifold must be measured referenced to sealed vacuum. With a 15 to 115 kPa absolute range spanning sub-atmospheric idle to atmospheric and beyond, a 0.2 to 4.7 V ratiometric output at 5 V VCC, and on-chip temperature compensation from -40 C to +125 C, it delivers ECU-ready accuracy without external calibration. The SSOP-8 top-port package mounts directly on the engine control board with the 3.3 mm tube connecting to the manifold via a short hose. Compared with discrete bridge-plus-amplifier designs, the integrated op-amp and thin-film network eliminate drift sources and reduce PCB area. Designers should sample the ratiometric output with an ADC whose reference shares the same 5 V rail to preserve absolute accuracy across the full operating range.
Recomendado
Barometric Altimeter / Weather Station
The MPXH6115AC6T1 suits barometric altimeter and weather station designs because absolute pressure in the 15 to 115 kPa range maps directly to altitudes from approximately -500 m below sea level to +9000 m above. The 1.5% compensated accuracy provides roughly +/-10 m altitude resolution after smoothing, while the ratiometric 0.2 to 4.7 V output interfaces directly to a 5 V MCU ADC. The 8-SSOP package with top port allows the sensor to be mounted at the edge of a weather-station PCB with the tube exposed to ambient air. Designers should add a Gore-Tex vent membrane over the port to keep moisture and dust out while allowing atmospheric pressure equilibration. The on-chip temperature compensation ensures stable readings across outdoor day-night thermal cycles.
Recomendado
Medical Respiratory / CPAP Pressure Monitoring
Medical respiratory equipment such as CPAP machines, ventilators, and spirometers benefit from the MPXH6115AC6T1's 15 to 115 kPa absolute range and 1.5% compensated accuracy for measuring airway and circuit pressure. The dry-gas media compatibility suits the clean, non-corrosive airflows of respiratory circuits, and the top-side 3.3 mm tube port simplifies hose connection directly to the manifold. The integrated temperature compensation from -40 C to +125 C handles the warm humidified air of patient circuits. Designers must add a hydrophobic antibacterial filter upstream of the port to prevent contamination of the sensor die. The ratiometric output drives a 5 V MCU ADC without signal conditioning, and the 8-SSOP footprint simplifies PCB layout in compact handheld designs.
Recomendado
HVAC Duct Pressure Monitoring
HVAC duct pressure monitoring in commercial building automation uses the MPXH6115AC6T1 to measure differential or absolute pressure in air handling units, filter status, and fan performance. The 15 to 115 kPa absolute range easily covers typical duct static pressures of 0.5 to 5 inches water column (125 Pa to 1250 Pa) at the lower end, leaving headroom for transient spikes. The ratiometric 0.2 to 4.7 V output at 5 V interfaces to standard 5 V building automation MCUs, and the compensated -40 C to +125 C range handles unconditioned mechanical rooms. Designers should mount the SSOP-8 package near the PCB edge with the top port connected to a Pitot tube or static pressure probe via the 3.3 mm tube fitting.
Recomendado
Tire Pressure Monitoring Module (TPMS)
Wheel-mounted tire pressure monitoring modules use the MPXH6115AC6T1 to measure the absolute pressure inside the tire cavity, referenced to sealed vacuum rather than ambient, so altitude changes do not affect accuracy. The 15 to 115 kPa range covers passenger car tire pressures (typically 30-40 PSI absolute), and the rugged thermoplastic PPS package withstands high-vibration wheel environments. The integrated op-amp and resistor network reduce PCB area, critical for the small form factor inside a TPMS valve-stem module. Designers should add a conformal coating and stress relief at the 3.3 mm port tube to survive long-term mechanical fatigue. The on-chip temperature compensation handles the wide thermal swings a TPMS module sees from cold winter roads to hot summer asphalt.
Recomendado
Sealed-Cavity Leak Detection
Sealed-cavity leak detection in enclosures such as waterproof electronics housings, vacuum-insulated panels, and hermetic packages uses the MPXH6115AC6T1 to monitor absolute internal pressure over time. Because the sensor measures absolute pressure referenced to sealed vacuum, any pressure rise inside a sealed cavity indicates gas ingress or outgassing. The 15 to 115 kPa range accommodates vacuum-insulated product cavities, while the 1.5% accuracy detects leaks at the millibar level over long time scales. The top-side 3.3 mm tube port simplifies plumbing into the cavity under test. Designers should add a hydrophobic membrane over the port to prevent contamination while preserving pressure transmission. The compensated -40 C to +125 C range allows use in outdoor sealed enclosures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MPXH6115AC6T1 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MPXH6115AC6U | MPXHZ6115AC6T1 | MPXHZ6115AC6U | MP3H6115A6U | XGZP6858A |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | CF Sensor |
| Package | 8-SSOP Top Port | 8-SSOP Top Port | 8-SSOP Top Port | 8-SSOP Top Port | 8-SSOP | 8-SSOP equivalent |
| Pressure Type | Absolute | Absolute | Absolute | Absolute | Absolute | Absolute |
| Operating Pressure Range | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa | 15 to 115 kPa |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tube | Tube | Tape & Reel |
Diferenciadores clave
- Wide compensated temperature range without external calibration (frente a XGZP6858A)
- Dual-sourced from NXP and STMicroelectronics on the same die (frente a MP3H6115A6U)
- Top-side 3.3 mm tube port for compact hose connection (frente a MP3H6115A6U)
Notas de diseño
Power the MPXH6115AC6T1 from a clean, well-regulated 5 V rail. Place a 100 nF ceramic decoupling capacitor within 5 mm of the VCC pin to suppress switching noise that would otherwise couple into the analog output. Because the output is ratiometric, the absolute voltage scales linearly with VCC; if VCC drifts 1%, the output drifts 1%. Use an LDO or low-noise DC-DC for VCC rather than a direct switching regulator output.
Sample the ratiometric analog output with an ADC whose reference voltage is derived from the same 5 V rail as the sensor. This makes the ADC measurement inherently ratiometric and cancels out absolute VCC variation. Add a 10 nF to 100 nF capacitor on the sensor output pin to filter high-frequency noise; do not add too much capacitance or the output bandwidth drops below useful levels for dynamic pressure measurements such as MAP sensing.
Mount the SSOP-8 package near the edge of the PCB so the top-side 3.3 mm tube port has clearance for the pneumatic hose connection. Avoid placing tall components within 3 mm of the port to prevent mechanical interference. Route the analog output trace away from switching power and digital clock traces; add a ground guard ring around the sensor output trace if the board is densely routed. Confirm the package land pattern matches JEDEC SSOP-8 with 0.65 mm pitch.
Do not expose the sensor die to liquids, corrosive gases, or condensing humidity without an upstream hydrophobic membrane or filter - the media compatibility is rated for dry, non-corrosive gases only. Do not exceed 5.25 V VCC or the on-chip op-amp may saturate or suffer long-term damage. Do not connect any of the NC pins; per the datasheet these are internal test pads and tying them to a signal can disturb the calibration.
Información de cumplimiento
RoHS and REACH compliant per STMicroelectronics product page; lead-free (Pb-free) reflow-compatible per JEDEC J-STD-020. AEC-Q100 not explicitly claimed; for automotive designs, validate against the application environment. Halogen-free status not stated in the manufacturer datasheet.
